package PrefixAnd;

import java.util.Scanner;

public class PrefixAndTwodemensional {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        int n=in.nextInt();
        int m=in.nextInt();
        int q=in.nextInt();


        int[][] arr=new int[n+1][m+1];
        long[][]  dp=new long[n+1][m+1];


        for(int i=1;i<=n;i++){
            for(int j=1;j<=m;j++){
                arr[i][j]=in.nextInt();
            }
        }

        for(int i=1;i<=n;i++){
            for(int j=1;j<=m;j++){
                dp[i][j]=dp[i][j-1]+dp[i-1][j]+arr[i][j]-dp[i-1][j-1];
            }
        }

        while(q>0){
            int x1=in.nextInt();
            int y1=in.nextInt();
            int x2=in.nextInt();
            int y2=in.nextInt();
            System.out.println(dp[x2][y2]-dp[x1-1][y2]-dp[x2][y1-1]+dp[x1-1][y1-1]);
            q--;
        }

    }
}
